International Scholarly Research Notices / 2013 / Article / Fig 1

Clinical Study

Optimal Planning Target Volume Margins for Elective Pelvic Lymphatic Radiotherapy in High-Risk Prostate Cancer Patients

Figure 1

The figure demonstrates the location of the iliac vessels (IVs), PL-CTV, and PL-PTV on daily imaging. Original position of IV is shown using bold, and its location on a treatment day is shown using dotted line. Coverage of pelvic lymphatics is achieved despite shift in position of IV by adding sufficient margin around CTV to create PTV.